Double window or window ventilator



Aug. 29, 1933. w. H.- KOHLEIR 1,924,284

nousm: wmnow on wmnow VENTILATOR Filed March 2, 1952 INVENTOR W LBURHENRY KOHLER.

' 'A'r'roR A! Patented Aug. 29, 1933 DOUBLE WINDOW OR. WINDOW VENTILATORWilbur Henry Kohler, Montclair, J. Application March 2, 1932. Serial No.596,221

2 Claims. 01. 9899) This invention relates to ventilating devices, andmore particularly to an improved window ventilator so designed as to beeasily installable and removable without tools, of simple andinexpensive construction, and incorporating among numerous importantadvantages, absolute weather tightness even when open, increased ratherthan decreased protection against the es.- cape of .heat or the entranceof drafts therethrough when closed, ease of operation, and rigidity ofpositioning when installed, whereby rattling and other noises of likenature are rendered a virtual impossibility. v

Among other important objectsshould be men-. tioned the provision insuch a ventilator of 0ppositely hinged and arranged inner and outerbaffles, so disposed and interconnected that both are automaticallyopened and closed simultaneously upon movement of the inner, that thebaffles counterbalance and stabilize each other and so hold any positionto which they may be adjusted, without the necessity of providingspecial securing or counterbalancing means,

Another object of this invention is the provision of improved means fordetachably but rigidly securing in place window ventilators and otherdevices intended for similar removable positioning. I

' A still'further object is the provision of such a ventilatorincorporating in addition to a plurality of spaced independently hingedbut simultanejously operable baflles, meanscompletely screening the airpassage through the ventilator, but offering no interference" to'manipulation of the baffles.

Still another object is the provision in such a ventilator of meanseffectively shielding against 'the'elements a window opening in which itis installed, whether the ventilator be open or closed,and providing aswell means for guidingiy directing upwardly and close to the wall withinthe room, air currents entering through the ventilator when open. I I

Other objects and advantages will be apparent from the followingdescription,.wherein reference is made to the accompanying drawingillustrating a preferred embodiment of my invention. and wherein similarreference characters designate similar parts throughout the severalviews:

Fig. 1 is a top plan view of a ventilator 1ncorporating, the principlesof my invention;

Fig. 2 is a front elevational view thereof looking at its inner side,one baffle being partly broken away to aiford a view of the screenpreferably incorporated in the device;

Fig. 3 is a vertical section taken substantially on the line 3-3 of Fig.2; v

Fig. 4 is a top plan view similar to Fig. 1, but showing the ventilatorin opened position; 7 Fig. 5 is a front elevational view taken lookingat the ventilator as in Fig. 2, but showing the same open; l

Fig.6 is a sectional view, also taken on line BB of Fig. ,2, but showingthe ventilator open;

Fig. 7 is a fragmentary detail top plan view of' one end of theventilator, bringing out the construction of the retaining means; I

Fig-7a is a fragmentary detail front elevational view of this portion ofthe device, and

Fig. 8 is an enlarged fragmentary sectional viewsimilar to Fig. 6,showing in greater detail parts of the battle actuating and guidingmeans.

Referring now to the drawing:.Reference character 1 designates a frame,formed of any suitable material although preferablywood or metal, andgenerally rectangular in shape as shown .in Figs. 2 and 5. The frame isadapted to fit and be retained in a window opening, or the like, as, forexample, in the grooves in which slide the sashes ofia double hungwindow of conventional construction, although this as well as the shapeand general'construction of the frame will be seen to be purely optionaland quite independent of the invention. V

For securing purposes the frame is along at least one edge provided witha yieldably out pressed retaining" member 7 of generally T-sec tion,having a stem portion 7' slidablein and transversely of a 'slotor groove17 in the edge of the'frame, whileits head, portion is pref- 'erably ofsuch widthas to fit snugly 1 in the groove of the window casing,although this also is optional. In the embodiment shown,.retainingmember 7 is both positioned and limited in its movement by screws 8, theshanks of which in the retaining member, while the screw heads extendloosely through transverse apertures 18 serve as stops limiting outwardmovement of the stem portion of the T-sectioned retainer are trappedcompression springs 9, shown as positioned 'by the shanks of screws 8,which they may encircle in the manner shown It will be.

seen that by properly'proportioning the frame to the width of thewindow, and despite any minor variations therebetween (which arecompensated for by the resilient mounting of the retaining member) theframe may be positioned in'the grooves of a Window frame by merelyforcing the retaining member inwardly sufficiently to permit insertingthe ventilator frame, and then releasing the retaining member to allowit to snap outwardly into the groove; The spring also of course forcesthe opposite edge of the ventilator frame into the opposite groove ofthe window frame.

In the ventilator frame 1, there may be arranged a screen 6, which maybe permanently secured in position, and to the inner and outer surfaceof the frame 1, are hinged bailles 2-3, the former, shown as theinwardly facing bafile,

being preferably hingedly connected to the bottom of the frame as at 10,while the outer baffle 3 is similarly attached to the outer surface ofthe frame adjacent its top as at 10. v

The baflles are interconnected for simultaneous opening and closingmovement by means of lev-,

ers 4, one of these being preferably arranged at each end of the frame1, to which they are centrally pivoted, as at 16. The levers havearms ofsubstantially equal length, the ends of. which are slidably connected tothe baffles 2-3 as by means of pin and slot connections provided by,

laterally projecting studs 15 carried by the ends of the lever arms andengaging in slotted guide are arranged between the ends of the screenand the frame, between which a narrow slot (undesignated) may be left toaccommodate them, the screen offers no interference to their freeswinging movement. The levers 4 may of course be formed of, sheet metaland if so constructed may be so thin that the slots required to be leftto accommodate them will not permit the passage therethrough of insectsor other foreign matter which the screen would not admit, or as shown,the central portion of each lever may be rounded and the arms beingofiset, as above described, lie outside and one on each side of theframe, while the central rounded portion fits tightly therein as shownin Fig. 3.

The hinged juncture of the outer b'afile and the frame is preferablyprotected by an overhanging guard member as 13, so contoured, as bybeing provided with a sloping upper surface, that rain and the likewhich runs or falls upon this part'of the frame is prevented fromentering any interstices which may exist. in the hinges or along thehinged edges of the frame and outer baffle.

Further protection against the possible ingress of unwanted elements maybe provided by end guards 14, shown as plate members of sectoral formsecured to and projectingoutwardly from the surface of the frame 1adjacent the edges of the outer bafileS, in such manner that the ends ofthis baffle swing in close proximity thereto.

ing of elements through the ventilator around the edges of the outerbaii'le when opened.

For additionally assisting in positioning the ventilator an upwardlyprojecting strip as 12 may be secured to the inner surface of the frame,in front of which the lower edge of the window sash is adapted to bearranged and the latter of course closed down upon the top of theventilator frame as tightly as may be. Any water which seeps into thisspace between the window and the frame is thus prevented by strip 12from entering the room, and if a slight downward slope is given to thetop of frame 1, as shown in Figs. 3 and 6, any such water will runnaturally therefrom and, over the guard strip from which it mayharmlessly drip.

By virtue of the oppositely hinged arrangement and the pivotalinterconnection of the baffies provided by the levers 4, the baffles, aswill be apparent, not only move in unison upon the manipulation ofeither, but balance each other when opened, whether fully or to anyintermediate degree. The outer baffle 3 further provides a naturalshield, down and over which precipitated elements may run while beingsimultaneously conducted away from the window. The guard members i31 lfurther obviate any possibility of undesired moisture entering thewindow through the ventilator, while the inclination of the inner baiilewhen open is, by virtue of its bottom hinging, such that infiowing aircurrents are thereby directed upwardly a'ndcloseto the wall of the roomin a manner recognized as highly advantageous. A knob as 11 for manipulating the inner baffle may of course be provided;

While it will be apparent that the preferred embodiment of my inventionherein disclosed is its lower edge to the lower part of the inner faceof said frame, a second window hingedly connected at its upper edge tothe upper part of the exterior face of said frame, slotted bracketsattached to the sides of the windows, acentrally pivoted offset leverhaving laterally extending pins in the extremities thereof,the pinsbeing in sliding engagement with the slotted brackets and the windowsbeing similarly constructed and placed but oppositely hinged, wherebythe tendency of one window to swing open is balanced by the tendency ofthe other window to swing closed. 7

2. A device of the class'described comprising a screen frame, a windowhingedly connected at its lower edge to one face of said frame, a secondwindow hingedly connected at its upper edge to the other face of saidframe, and a longitudinal guard overhanging the hinged juncture of theouter window and frame, and projecting out.- wardly beyond the upperouter edge of said outer window in all adjusted positions of the latter.7

WILBUR. HENRY KOHLER.

